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media: rockchip: rkcif: add abstraction for dma blocks

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Add an abstraction for the DMA parts and the ping-pong scheme (a
double-buffering mechanism) of the different CIF variants. Each
stream is represented as V4L2 device whose corresponding media
entity has one sink pad. This sink pad is connected to an instance
of the INTERFACE/CROP abstraction.

Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
[hverkuil: dropped deprecated vb2_ops_wait_prepare/finish callbacks]
This commit is contained in:
Michael Riesch 2025-11-14 16:20:18 +01:00 • committed by Hans Verkuil
commit 501802e2ad
5 changed files with 773 additions and 0 deletions
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